{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-43877",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-05-04T15:17:09.329Z",
        "datePublished": "2026-05-11T20:34:43.371Z",
        "dateUpdated": "2026-05-12T16:37:43.563Z"
    },
    "containers": {
        "cna": {
            "title": "WWBN AVideo: CSRF in userSavePhoto.php Allows Cross-Origin Overwrite of Any Logged-in User's Profile Photo with Arbitrary Bytes",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-352",
                            "lang": "en",
                            "description": "CWE-352: Cross-Site Request Forgery (CSRF)",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "LOW",
                        "baseScore": 5.4,
                        "baseSeverity": "MEDIUM",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "LOW",
                        "privilegesRequired": "NONE",
                        "scope": "UNCHANGED",
                        "userInteraction": "REQUIRED",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/WWBN/AVideo/security/advisories/GHSA-jw8g-5j46-44rp",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/WWBN/AVideo/security/advisories/GHSA-jw8g-5j46-44rp"
                },
                {
                    "name": "https://github.com/WWBN/AVideo/commit/9c38468041505e637101c5943c5370c68f48e3ac",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/WWBN/AVideo/commit/9c38468041505e637101c5943c5370c68f48e3ac"
                }
            ],
            "affected": [
                {
                    "vendor": "WWBN",
                    "product": "AVideo",
                    "versions": [
                        {
                            "version": "<= 29.0",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-05-11T20:34:43.371Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "WWBN AVideo is an open source video platform. In versions up to and including 29.0, objects/userSavePhoto.php is a legacy profile-photo endpoint that accepts a base64 POST parameter and writes the decoded bytes to videos/userPhoto/photo<users_id>.png. Its only access control is User::isLogged(). It does not end in .json.php, so it is excluded from the project's global autoCSRFGuard (which is suffix-scoped in objects/include_config.php). There is no CSRF token, no Origin/Referer check, and no MIME validation of the decoded bytes. Because AVideo's default cookie policy is SameSite=None; Secure on HTTPS (objects/functionsPHP.php:227), an attacker who lures a logged-in user to a malicious page can overwrite that user's profile photo with arbitrary bytes and also triggers a site-wide clearCache(true) on every forged request. Commit 9c38468041505e637101c5943c5370c68f48e3ac contains an updated fix."
                }
            ],
            "source": {
                "advisory": "GHSA-jw8g-5j46-44rp",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "references": [
                    {
                        "url": "https://github.com/WWBN/AVideo/security/advisories/GHSA-jw8g-5j46-44rp",
                        "tags": [
                            "exploit"
                        ]
                    }
                ],
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-05-12T16:36:34.990206Z",
                                "id": "CVE-2026-43877",
                                "options": [
                                    {
                                        "Exploitation": "poc"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-05-12T16:37:43.563Z"
                }
            }
        ]
    }
}